Combined walk-in stairs and built-in spa for swimming pools



FIG. 1 is a top plan view of a combined walk-in stairs _and built-in spafor swimming pools, showing our new design;

FIG. 2 is a front elevational view of a combined walk-in _stairs andbuilt-in spa for swimming pools from the opposite _side;

FIG. 3 is a perspective view from one side thereof;

FIG. 4 is a perspective view front the other side;

FIG. 5 is a rear elevational view thereof.

The ornamental design for a combined walk-in stairs and built-in spa forswimming pools, substantially as shown and described.